3/4 in. SCH-40 PVC True Union Ball Check Valve Socket-Type ASTM D2466/F1970 One-Way Flow Control

247Garden 3/4-Inch PVC True Union Ball Check Valve – Socket-Type | ASTM D2466 / F1970 Compliant | Durable One-Way Flow Control for Irrigation, Filtration, and Plumbing Systems

The 247Garden 3/4-Inch PVC True Union Ball Check Valve Socket-Type is a premium-grade backflow prevention fitting designed to meet or exceed ASTM D2466 and F1970 specifications. Crafted from industrial-strength Schedule 40 PVC and equipped with EPDM sealing components, this valve ensures directional flow control, chemical resistance, and long-term reliability in both pressurized and gravity-fed systems.

Ideal for a wide range of applications—from greenhouse irrigation and hydroponics to pool circulation and residential water filtration—the true union design allows for full disassembly, inspection, and maintenance without cutting into your existing plumbing. With a compact form factor, 9-part serviceable construction, and precision-engineered ball mechanism, the 3/4-inch valve is perfect for mid-size PVC systems that require dependable performance and easy field service.

Technical Specifications:

• Size: 3/4 inch nominal

• Standards: Complies with ASTM D2466 (PVC fittings) and ASTM F1970 (PVC valves)

• Connection Type: Socket/Slip (solvent-weld for Schedule 40 PVC)

• Body Material: Rigid white Schedule 40 PVC

• Seal Material: EPDM (ethylene propylene diene monomer)

• Max Pressure Rating: 150 PSI at 73°F (non-shock)

• Temperature Range: 33°F to 140°F

• Installation Orientation: Vertical preferred; horizontal acceptable with consistent pressure

• Function: Single-direction flow with automatic backflow prevention

Component Breakdown – 9-Part Assembly:

1. (2x) PVC Socket End Connectors: Slip-fit ends ready for solvent welding to standard 3/4" Schedule 40 PVC pipe.

2. (2x) Union Nuts: Threaded collars allow removal of the valve body without pipe disassembly, enabling quick inline maintenance.

3. (1x) Central Valve Body: Reinforced Schedule 40 PVC housing offers excellent pressure tolerance and structural strength.

4. (1x) Internal PVC Ball: The free-floating check ball rises under forward pressure and drops to seal under reverse flow.

5. (1x) Gland (Ball Retainer): Holds the ball in precise position and prevents movement outside the vertical flow axis.

6. (1x) Stem O-Ring: Forms a pressure-tight seal around the stem area to eliminate leakage.

7. (1x) EPDM O-Ring Seal: Provides a tight, chemical-resistant seat for the ball to seal against during backflow.

How It Works:

The valve functions through a simple, reliable mechanism that requires no springs or moving metal components:

• Forward Flow (Open): When water flows from inlet to outlet, pressure lifts the internal ball upward, allowing unimpeded flow.

• Reverse Flow (Closed): If water attempts to flow in reverse, gravity and backpressure force the ball to drop into its EPDM-sealed seat, immediately stopping backflow.

• Maintenance Made Easy: The true union design lets you isolate and service the internal valve components in-place, with no need to cut or replace surrounding pipe sections.

Why the 247Garden True Union Ball Check Valve Outperforms the Rest:

• ASTM D2466/F1970 Certified: Built to meet stringent plumbing and valve performance standards for safety, dimensional accuracy, and flow reliability.

• True Union Versatility: Unlike glued one-piece valves, this union-based design allows the valve body to be removed and serviced at any time.

• No Springs, No Corrosion: All-PVC internal construction is ideal for use with chlorinated water, fertilizer solutions, saltwater, and pH-adjusted systems.

• Compact, Quiet, Efficient: With no flaps or mechanical slamming, the floating ball mechanism reduces noise and water hammer.

• EPDM Seals for Long Life: UV- and chemical-resistant elastomer seals deliver dependable performance in demanding environments.

Ideal Applications:

• Raised-bed and drip irrigation systems

• Hydroponic and aquaponic return lines

• Greenhouse and nursery fertigation systems

• Swimming pool and spa plumbing

• Rainwater harvesting setups

• Aquarium sump and overflow protection

• Pump and booster pump systems

Why 247Garden:

At 247Garden, we deliver professional-grade fittings and valves backed by engineering precision, tested performance, and responsive customer service. Our 3/4" PVC True Union Ball Check Valve complies with both ASTM D2466 (fittings) and ASTM F1970 (valves), making it a smart investment for any system requiring secure, code-compliant flow control. Whether you're a grower, contractor, or DIY homeowner, this valve will give you the peace of mind and performance you expect from a trusted brand.